Download and solve practice problems in over 30 different languages. For code newbies and experienced programmers.


The best free alternative to HackerRank is exercism, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to HackerRank and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to HackerRank are LeetCode, tutorialspoint, Codewars and Project Euler.
Download and solve practice problems in over 30 different languages. For code newbies and experienced programmers.


LeetCode is a platform for learning and improving coding skills with the goal of being fully prepared for programming interviews. Choose problems to solve from categories such as System Design, Algorithms and Database, join code contests and engage in mock interviews.


Free tutorials and reference manuals with examples for Computer Fundamentals, JSF, C Sharp, Flex, GWT, PL/SQL, Eclipse, JUnit, Pascal, Maven, Scala, Spring, Struts 2, HTML5, ANT, iBATIS, Django, JSP, JAVA, JDBC, AJAX, WAP, SQL, MySQL, C/C++, PERL, PHP, Ruby, Ruby on Rails...




Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.


Interactive platform for acquiring Web3 skills via Missions—micro-tasks covering crypto topics—rewarding users with tokens, NFTs, and merchandise from crypto brands. Earn Bits to boost winning odds, create Missions, join Guilds, and benefit from referrals.



CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics.


same solve problem with code






HackerEarth is the most comprehensive developer assessment software that helps companies to accurately measure the skills of developers during the recruiting process.




The platform has lot of good things to offer.. like practice questions, reading materials/guide, preparatory interview questions, and more.
Job bases assessments and developer-friendly environment/platform.


Learn and Practice on almost all coding interview questions asked historically and get referred to the best tech companies.
Leetcode Wizard is an invisible desktop application powered by AI, instantly providing answers to all Leetcode problems for effortless coding interviews, like having ChatGPT in your ear.




Awesome content and games, great way to find jobs, active and nice community